feat: add Multi Channel ADC

[fabiangottstein]

This ADC implementation supports multiple channels with DMA transfer and software trigger. DMA transfer is one shot mode.

[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
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⚠️ MARKDOWN	markdown-link-check	6		2	63.38s
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✅ REPOSITORY	trivy	yes		no	6.61s
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✅ REPOSITORY	trufflehog	yes		no	12.17s
⚠️ SPELL	lychee	30		2	72.39s
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✅ YAML	v8r	8		0	6.43s
✅ YAML	yamllint	8		0	0.25s

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[fabiangottstein]

Note

I did not test this with the STM32WBAxx family.